But if I use this query directly on the database in phpMyAdmin, it works!
Do you know where could be the problem?
Thanks

SELECT
p.id_product,
pa.reference,
pl.name,
GROUP_CONCAT(DISTINCT(pal.name) SEPARATOR “, “) as combination,
p.price,
pq.quantity
FROM ps_product_attribute pa
LEFT JOIN ps_product p ON (p.id_product = pa.id_product)
LEFT JOIN ps_stock_available pq ON (p.id_product = pq.id_product AND pa.id_product_attribute = pq.id_product_attribute)
LEFT JOIN ps_product_lang pl ON (p.id_product = pl.id_product)
LEFT JOIN ps_product_attribute_combination pac ON (pa.id_product_attribute = pac.id_product_attribute)
LEFT JOIN ps_attribute_lang pal ON (pac.id_attribute = pal.id_attribute)
WHERE pl.id_lang = 1
AND pal.id_lang = 1
GROUP BY pa.reference
ORDER BY p.id_product, pac.id_attribute

Until that point I think I have controlled. There will be a way to export with Prestashop format to import the combinations of products?

I guess as you can add a ‘,’ separating the combinations, you could add the text takes the format of import

This is the format that I need, I mean the final result:
http://www.ingemaronline.com/docs/csv_import/combinations_import.csv

I use Prestashop 1.6.0.13 if it serves as data

SELECT 
    p.id_product,
    p.active,
    pl.name,
    GROUP_CONCAT(DISTINCT (cl.name)
        SEPARATOR ',') as categories,
    p.price,
    p.id_tax_rules_group,
    p.wholesale_price,
    p.reference,
    p.supplier_reference,
    p.id_supplier,
    p.id_manufacturer,
    p.ean13,
    p.upc,
    p.ecotax,
    p.weight,
    p.quantity,
    pl.description_short,
    pl.description,
    pl.meta_title,
    pl.meta_keywords,
    pl.meta_description,
    pl.link_rewrite,
    pl.available_now,
    pl.available_later,
    p.available_for_order,
    p.date_add,
    p.show_price,
    concat('http://',
            ifnull(shop_domain.value, 'domain'),
            '/img/p/',
            if(CHAR_LENGTH(pi.id_image) >= 5,
                concat(SUBSTRING(pi.id_image from - 5 FOR 1),
                        '/'),
                ''),
            if(CHAR_LENGTH(pi.id_image) >= 4,
                concat(SUBSTRING(pi.id_image from - 4 FOR 1),
                        '/'),
                ''),
            if(CHAR_LENGTH(pi.id_image) >= 3,
                concat(SUBSTRING(pi.id_image from - 3 FOR 1),
                        '/'),
                ''),
            if(CHAR_LENGTH(pi.id_image) >= 2,
                concat(SUBSTRING(pi.id_image from - 2 FOR 1),
                        '/'),
                ''),
            if(CHAR_LENGTH(pi.id_image) >= 1,
                concat(SUBSTRING(pi.id_image from - 1 FOR 1),
                        '/'),
                ''),
            pi.id_image,
            '.jpg') as image_url,
    p.online_only,
    p.condition,
    p.id_shop_default
FROM
    ps_product p
        LEFT JOIN
    ps_product_lang pl ON (p.id_product = pl.id_product)
        LEFT JOIN
    ps_category_product cp ON (p.id_product = cp.id_product)
        LEFT JOIN
    ps_category_lang cl ON (cp.id_category = cl.id_category)
        LEFT JOIN
    ps_category c ON (cp.id_category = c.id_category)
        LEFT JOIN
    ps_product_tag pt ON (p.id_product = pt.id_product)
        LEFT JOIN
    ps_image pi ON p.id_product = pi.id_product
        LEFT JOIN
    ps_configuration shop_domain ON shop_domain.name = 'PS_SHOP_DOMAIN'
WHERE
    pl.id_lang = (SELECT id_lang FROM ps_lang WHERE active = '1' ORDER BY id_lang ASC LIMIT 1)
        AND cl.id_lang = pl.id_lang
        AND p.id_shop_default = (SELECT id_shop FROM ps_shop WHERE active = '1' ORDER BY id_shop ASC LIMIT 1)
        AND c.id_shop_default = p.id_shop_default
GROUP BY p.id_product

try replacing the where statement with this one:

WHERE
pl.id_lang = (SELECT id_lang FROM ps_lang WHERE active = ‘1’ ORDER BY id_lang ASC LIMIT 1)
AND cl.id_lang = pl.id_lang
AND p.id_shop_default = (SELECT id_shop FROM ps_shop WHERE active = ‘1’ ORDER BY id_shop ASC LIMIT 1)
AND c.id_shop_default = p.id_shop_default

The image url is formed from the domain name and the image id.

Here is the complete request:

SELECT
p.id_product,
p.active,
pl.name,
GROUP_CONCAT(DISTINCT (cl.name)
SEPARATOR ‘,’) as categories,
p.price,
p.id_tax_rules_group,
p.wholesale_price,
p.reference,
p.supplier_reference,
p.id_supplier,
p.id_manufacturer,
p.ean13,
p.upc,
p.ecotax,
p.weight,
p.quantity,
pl.description_short,
pl.description,
pl.meta_title,
pl.meta_keywords,
pl.meta_description,
pl.link_rewrite,
pl.available_now,
pl.available_later,
p.available_for_order,
p.date_add,
p.show_price,
concat(‘http://’,
ifnull(shop_domain.value, ‘domain’),
‘/img/p/’,
if(CHAR_LENGTH(pi.id_image) >= 5,
concat(SUBSTRING(pi.id_image from – 5 FOR 1),
‘/’),
”),
if(CHAR_LENGTH(pi.id_image) >= 4,
concat(SUBSTRING(pi.id_image from – 4 FOR 1),
‘/’),
”),
if(CHAR_LENGTH(pi.id_image) >= 3,
concat(SUBSTRING(pi.id_image from – 3 FOR 1),
‘/’),
”),
if(CHAR_LENGTH(pi.id_image) >= 2,
concat(SUBSTRING(pi.id_image from – 2 FOR 1),
‘/’),
”),
if(CHAR_LENGTH(pi.id_image) >= 1,
concat(SUBSTRING(pi.id_image from – 1 FOR 1),
‘/’),
”),
pi.id_image,
‘.jpg’) as image_url,
p.online_only,
p.condition,
p.id_shop_default
FROM
ps_product p
LEFT JOIN
ps_product_lang pl ON (p.id_product = pl.id_product)
LEFT JOIN
ps_category_product cp ON (p.id_product = cp.id_product)
LEFT JOIN
ps_category_lang cl ON (cp.id_category = cl.id_category)
LEFT JOIN
ps_category c ON (cp.id_category = c.id_category)
LEFT JOIN
ps_product_tag pt ON (p.id_product = pt.id_product)
LEFT JOIN
ps_image pi ON p.id_product = pi.id_product
LEFT JOIN
ps_configuration shop_domain ON shop_domain.name = ‘PS_SHOP_DOMAIN’
WHERE
pl.id_lang = (SELECT
id_lang
FROM
ps_lang
WHERE
active = ‘1’
ORDER BY id_lang ASC
LIMIT 1)
AND cl.id_lang = pl.id_lang
AND p.id_shop_default = (SELECT
id_shop
FROM
ps_shop
WHERE
active = ‘1’
ORDER BY id_shop ASC
LIMIT 1)
AND c.id_shop_default = p.id_shop_default
GROUP BY p.id_product